Improvement in devices for fastening nuts



n. sAlwYEn.

Improvement in Devices for Fastening Nuts.

N0.` 1311,630. ,i Patented Sep. 24, 1872.

thereof. Gis the spring-pawl with a pin, D, in one end for engaging theperforated flange UNITED STATEs PATENT OEEIGE.

DANIEL sAwYEE, 0E ToPEkA, KANSAS.

IMPROVEMENT IN DEVICES FOR FASTENING NUTS.

To all whom it may concern.- x

Be it known that I, DANIEL SAWYER, of Topeka, in the county of Shawneeand State of Kansas, have invented a new and Improved Bolt and Nut Lock,of which the following is a speciiication:

with a series of holes and a spring-pawl, with a pin in the free end toenter said holes of the liange and lock the nut against turning, thepawl being pivoted to another washer fastened to the timber, or to thetimber and -to a metal plate thereon, all as hereinafter described.

Figure l represents three examples of my improved nut-fasteningin planview, and Figs.

Zand 3 are side elevations in two different modifications.

A is the nut and B the perforated ange to hold the nut from turning, theother end of the pawl being pivoted at E to the `timber F, or to thesame and a plate of metal, G, or to a washer, H, fastened to the timberF by spurs, or in any other way. The flange B is on the bottom side ofthe nut, and the holes through it are parallel with the bolt. Thespring-pawl lies upon the top of the ilange of the nut cfa Verticalbolt, and the front side of the flange of a nut of a horizontal bolt,and is caused to press by its tension thereon so as to keep its pin D inthe hole of the flange. It will be My invention consists of a flange onthe nut seen that, however loose the nut may be by the expansion of thebolt, it will be effectually prevented from turning. The bolt maybeprevented from turning. so as to screw out of the nut when made round bya stud-pin, I; but this will not be needed if the bolt have plane sidesand the hole corresponds.

Having thus described my invention, I claim as new, and desire to secureby LettersPatent- A bolt and nut fastening, consisting of a perforatedange, B, and spring-pawl G with a pin, D,.combined with the bolt andnut, as I described, the said spring-pawl being fastened to a washer, H,the timber F, or a plate, G, substantially as specified. V

DANIEL SAWYER. Witnesses:

W. S. NIeHoLs, WM. H. SEssIoNs.

